woocommerce-paypal-payments/modules/ppcp-button/resources/js/modules/ContextBootstrap/MessagesBootstap.js

import {setVisible} from "../Helper/Hiding";
import MessageRenderer from "../Renderer/MessageRenderer";

class MessagesBootstrap {
    constructor(gateway, messageRenderer) {
        this.gateway = gateway;
        this.renderers = [];
        this.lastAmount = this.gateway.messages.amount;
        if (messageRenderer) {
            this.renderers.push(messageRenderer);
        }
    }

    init() {
        if (this.gateway.messages?.block?.enabled) {
            this.discoverBlocks();
        }
        jQuery(document.body).on('ppcp_cart_rendered ppcp_checkout_rendered', () => {
            this.render();
        });
        jQuery(document.body).on('ppcp_script_data_changed', (e, data) => {
            this.gateway = data;

            this.render();
        });
        jQuery(document.body).on('ppcp_cart_total_updated ppcp_checkout_total_updated ppcp_product_total_updated ppcp_block_cart_total_updated', (e, amount) => {
            if (this.lastAmount !== amount) {
                this.lastAmount = amount;

                this.render();
            }
        });

        this.render();
    }

    discoverBlocks() {
        Array.from(document.querySelectorAll('.ppcp-paylater-message-block')).forEach(blockElement => {
            const config = {wrapper: '#' + blockElement.id};
            if (!blockElement.getAttribute('data-pp-placement')) {
                config.placement = this.gateway.messages.placement;
            }
            this.renderers.push(new MessageRenderer(config));
        });
    }

    shouldShow(renderer) {
        if (this.gateway.messages.is_hidden === true) {
            return false;
        }

        const eventData = {result: true}
        jQuery(document.body).trigger('ppcp_should_show_messages', [eventData, renderer.config.wrapper]);
        return eventData.result;
    }

    render() {
        this.renderers.forEach(renderer => {
            const shouldShow = this.shouldShow(renderer);
            setVisible(renderer.config.wrapper, shouldShow);
            if (!shouldShow) {
                return;
            }

            if (!renderer.shouldRender()) {
                return;
            }

            renderer.renderWithAmount(this.lastAmount);
        });
    }
}

export default MessagesBootstrap;